Cruise Control Not Working After Rotor Change - BMW Luxury Touring Community
 
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post #1 of 4 Old Apr 20th, 2011, 11:08 pm Thread Starter
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Cruise Control Not Working After Rotor Change

Recently as part a 90,000 mile service on my 02 LT I installed a new ESS rear brake rotor. On my first ride after servicing, I rode about 250 using then CC about 70% of the time with no issues. About 60 miles from home, the CC quit working properly, cutting out shortly after setting. I was not able to set the CC for the remainder of the ride. After searching this site, I ran the diagnostic test and also disconnected the battery overnight. The diagnostic test worked fine until the final step, turning the rear wheel. When turning the rear wheel the CC set light did not go on and off and did not come on at all. I have also checked the ABS sensor wire which appeared to be undamaged although I did not chase the wire past the rear wheel area.

Since then, the MO of the CC is that it works fine when first starting out but after about 10 miles it will cut out after setting and eventually I am not able to set it at all. My suspicion is that changing the rotor is causing the CC problem. Any suggestions would be greatly appreciated.

2002 LT Titan Silver
1972 Suzuki TM400 Hustler
BMW MOA #130100
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post #2 of 4 Old Apr 21st, 2011, 12:38 am
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Re: Cruise Control Not Working After Rotor Change

I would bet you need to set the air gap between the sensor and the toothed ring. Procedure in Haynes manual or a search on this site will bring up the procedure for you.

Loren

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post #3 of 4 Old Apr 21st, 2011, 7:21 am
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Re: Cruise Control Not Working After Rotor Change

Does your 02 model have the speed sensor in the top of the final drive? IF SO, you may have a loose connection somewhere in the wire from it to the engine compartment. You could probably tell if it is loose if the speedometer needle fluctuates a little while moving.

Dan Sullivan
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post #4 of 4 Old Apr 24th, 2011, 10:53 am Thread Starter
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Re: Cruise Control Not Working After Rotor Change

Thanks for the information on the sensor. I apparently missed that part in researching the rotor change.
I readjusted the sensor, went on a 350 mile ride yesterday, and no CC problems.

Thanks again!

2002 LT Titan Silver
1972 Suzuki TM400 Hustler
BMW MOA #130100
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